Pat O'Brien (Frank Cavanaugh)
Ruth Warrick (Florence "Mike" Ayres Cavanaugh)
Robert Ryan (Fr. Tim Donovan)
Robert Thom (Soldier)
Harry Tyler
George Tyne
Dorothy Vaughan (Ma Cavanaugh)
Russell Wade (Pvt. Manning)
Pierre Watkin (Col. White)
Ian Wolfe (Prof. Runnymead)
Frank Shannon (Pa Cavanaugh)
Billy Roy (Bob as a Boy)
Henry Roquemore (Evans)
Cyril Ring (Ross)
Frank Puglia (Nurse)
Lee Phelps
Pat O'Malley (Charlie)
John Miljan (Oregon Coach)
Paul McVey (Athletic Coach)
Edward Woods (Friend)
Richard Davies (Chuck)
Richard Martin (Davis Cavanaugh)
Robert Anderson
Joe O'Connor (2nd Defense Attorney)
Michael Miller
Russ Clark (Umpire)
Steve Winston
John Buddy Williams (Pullman Porter)
Sada Simmons
Mel Schubert
Ramon Ros (Dancer)
Walter Robbins
Michael Road
Robert Winkler (Frank as a Boy)
James Magill
Michael Lally
James Courtney
Sam McDaniel (Pete)
Greg McClure (Boston College Player)
Roland DuPree
John Dilson (Doctor)
Joel Davis (Davie as a Boy)
Mary Currier (Nurse)
Joseph Crehan (Judge)
Gordon B. Clark (Student)
Wheaton Chambers (Army Doctor)
Charles D. Brown
Walter Brooke (Lt. Stone)
Virginia Brissac (Mrs. Ayres)
Louis Borell (French Officer)
Robert Bice (Coach)
Dean Benton (William Cavanaugh)
Brooks Benedict
Brandon Beach (Alumni)
Stephen Barclay (Football Player)
Leon Ames (Robert Stewart)
Bruce Edwards (Lt. Jones)
Walter Fenner (Doctor)
Bobby Larson
Margaret Landry (Sis Cavanaugh)
Harold Landon
Fred Kohler, Jr. (Boston College Captain)
Joseph King (Defense Attorney)
Victor Kilian (Francis Cavanaugh)
Milt Kibbee (Watkins)
Sid Jordan (Drivers of 2-Up)
Louis Jean Heydt (Recruiting Sergeant)
Myron Healey (Paul Cavanaugh)
Lew Harvey (Lieutenant)
Eddie Hart (Bailiff)
Chuck Hamilton (Fordham Player)
Barbara Hale (Sarah Cavanaugh)
Bud Geary (Sergeant)
William Forrest (Official)
James Flavin
Kirk Alyn (John Cavanaugh)